She never wants to hang out, advice?

me and this girl have been texting a lot in the past 2 or so weeks. the content of our texts seem like we both like each other. we flirt when we see each other (group setting), she touches me a lot, calls me nicknames, and I do the same thing back. almost every day I wake up to a text from her. only problem is, when I ask her to hang out she makes something up.